diff -r 000000000000 -r 6474c204b198 toolkit/components/jsdownloads/src/DownloadPlatform.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/jsdownloads/src/DownloadPlatform.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,175 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "DownloadPlatform.h"
+#include "nsAutoPtr.h"
+#include "nsString.h"
+#include "nsIURI.h"
+#include "nsIFile.h"
+#include "nsDirectoryServiceDefs.h"
+
+#include "mozilla/Preferences.h"
+
+#define PREF_BDM_ADDTORECENTDOCS "browser.download.manager.addToRecentDocs"
+
+#ifdef XP_WIN
+#include <shlobj.h>
+#include <urlmon.h>
+#include "nsILocalFileWin.h"
+#endif
+
+#ifdef XP_MACOSX
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+
+#ifdef MOZ_WIDGET_ANDROID
+#include "AndroidBridge.h"
+#endif
+
+#ifdef MOZ_WIDGET_GTK
+#include <gtk/gtk.h>
+#endif
+
+using namespace mozilla;
+
+DownloadPlatform *DownloadPlatform::gDownloadPlatformService = nullptr;
+
+NS_IMPL_ISUPPORTS(DownloadPlatform, mozIDownloadPlatform);
+
+DownloadPlatform* DownloadPlatform::GetDownloadPlatform()
+{
+  if (!gDownloadPlatformService) {
+    gDownloadPlatformService = new DownloadPlatform();
+  }
+
+  NS_ADDREF(gDownloadPlatformService);
+
+#if defined(MOZ_WIDGET_GTK)
+  g_type_init();
+#endif
+
+  return gDownloadPlatformService;
+}
+
+#ifdef MOZ_ENABLE_GIO
+static void gio_set_metadata_done(GObject *source_obj, GAsyncResult *res, gpointer user_data)
+{
+  GError *err = nullptr;
+  g_file_set_attributes_finish(G_FILE(source_obj), res, nullptr, &err);
+  if (err) {
+#ifdef DEBUG
+    NS_DebugBreak(NS_DEBUG_WARNING, "Set file metadata failed: ", err->message, __FILE__, __LINE__);
+#endif
+    g_error_free(err);
+  }
+}
+#endif
+
+nsresult DownloadPlatform::DownloadDone(nsIURI* aSource, nsIFile* aTarget,
+                                        const nsACString& aContentType, bool aIsPrivate)
+{
+#if defined(XP_WIN) || defined(XP_MACOSX) || defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK)
+  nsAutoString path;
+  if (aTarget && NS_SUCCEEDED(aTarget->GetPath(path))) {
+#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
+    // On Windows and Gtk, add the download to the system's "recent documents"
+    // list, with a pref to disable.
+    {
+      bool addToRecentDocs = Preferences::GetBool(PREF_BDM_ADDTORECENTDOCS);
+      if (addToRecentDocs && !aIsPrivate) {
+#ifdef XP_WIN
+        ::SHAddToRecentDocs(SHARD_PATHW, path.get());
+#elif defined(MOZ_WIDGET_GTK)
+        GtkRecentManager* manager = gtk_recent_manager_get_default();
+
+        gchar* uri = g_filename_to_uri(NS_ConvertUTF16toUTF8(path).get(),
+                                       nullptr, nullptr);
+        if (uri) {
+          gtk_recent_manager_add_item(manager, uri);
+          g_free(uri);
+        }
+#endif
+      }
+#ifdef MOZ_ENABLE_GIO
+      // Use GIO to store the source URI for later display in the file manager.
+      GFile* gio_file = g_file_new_for_path(NS_ConvertUTF16toUTF8(path).get());
+      nsCString source_uri;
+      aSource->GetSpec(source_uri);
+      GFileInfo *file_info = g_file_info_new();
+      g_file_info_set_attribute_string(file_info, "metadata::download-uri", source_uri.get());
+      g_file_set_attributes_async(gio_file,
+                                  file_info,
+                                  G_FILE_QUERY_INFO_NONE,
+                                  G_PRIORITY_DEFAULT,
+                                  nullptr, gio_set_metadata_done, nullptr);
+      g_object_unref(file_info);
+      g_object_unref(gio_file);
+#endif
+    }
+#endif
+#ifdef XP_MACOSX
+    // On OS X, make the downloads stack bounce.
+    CFStringRef observedObject = ::CFStringCreateWithCString(kCFAllocatorDefault,
+                                             NS_ConvertUTF16toUTF8(path).get(),
+                                             kCFStringEncodingUTF8);
+    CFNotificationCenterRef center = ::CFNotificationCenterGetDistributedCenter();
+    ::CFNotificationCenterPostNotification(center, CFSTR("com.apple.DownloadFileFinished"),
+                                           observedObject, nullptr, TRUE);
+    ::CFRelease(observedObject);
+#endif
+#ifdef MOZ_WIDGET_ANDROID
+    if (!aContentType.IsEmpty()) {
+      mozilla::widget::android::GeckoAppShell::ScanMedia(path, NS_ConvertUTF8toUTF16(aContentType));
+    }
+#endif
+  }
+
+#ifdef XP_WIN
+  // Adjust file attributes so that by default, new files are indexed by
+  // desktop search services. Skip off those that land in the temp folder.
+  nsCOMPtr<nsIFile> tempDir, fileDir;
+  nsresult rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(tempDir));
+  NS_ENSURE_SUCCESS(rv, rv);
+  aTarget->GetParent(getter_AddRefs(fileDir));
+
+  bool isTemp = false;
+  if (fileDir) {
+    fileDir->Equals(tempDir, &isTemp);
+  }
+
+  nsCOMPtr<nsILocalFileWin> localFileWin(do_QueryInterface(aTarget));
+  if (!isTemp && localFileWin) {
+    localFileWin->SetFileAttributesWin(nsILocalFileWin::WFA_SEARCH_INDEXED);
+  }
+#endif
+
+#endif
+
+  return NS_OK;
+}
+
+nsresult DownloadPlatform::MapUrlToZone(const nsAString& aURL,
+                                        uint32_t* aZone)
+{
+#ifdef XP_WIN
+  nsRefPtr<IInternetSecurityManager> inetSecMgr;
+  if (FAILED(CoCreateInstance(CLSID_InternetSecurityManager, NULL,
+                              CLSCTX_ALL, IID_IInternetSecurityManager,
+                              getter_AddRefs(inetSecMgr)))) {
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  DWORD zone;
+  if (inetSecMgr->MapUrlToZone(PromiseFlatString(aURL).get(),
+                               &zone, 0) != S_OK) {
+    return NS_ERROR_UNEXPECTED;
+  } else {
+    *aZone = zone;
+  }
+
+  return NS_OK;
+#else
+  return NS_ERROR_NOT_IMPLEMENTED;
+#endif
+}